Occupants with two point belt/knee bolster restraints incurred more liver and visceral injuries while occupants with three point belt restraints experienced more sternal and clavicular fractures. THE THREE POINT BELT restraint system has proven to be an effeclive means of crash protection for vehicular occupants.
What is the safest kind of seat belt?
The lap belt and shoulder belt are secured across the pelvis and rib cage, which are better able to withstand crash forces than other parts of your body. Place the shoulder belt across the middle of your chest and away from your neck. The lap belt rests across your hips, not your stomach.
Are 5 point harnesses safer?
The 5-point harness of a forward-facing car seat provides the best protection for pre-schoolers because it not only restricts movement, ensuring that toddlers are in the proper position should a crash occur, but also distributes the crash forces over a larger area of the body when compared to a safety belt and booster …
What is the difference between a 2 point and 3 point seat belt?
A 3 point seatbelt (also known as a diagonal seatbelt) is the most commonly used seatbelt in cars today and comes across the driver’s shoulder and lap to buckle at the side. A 2 point belt (also known as a lap belt) goes across the lap only. These are commonly found in buses/coaches.
What was the purpose of the 3 point seatbelt?
A three-point belt is a Y-shaped arrangement, similar to the separate lap and sash belts, but unified. Like the separate lap-and-sash belt, in a collision, the three-point belt spreads out the energy of the moving body over the chest, pelvis, and shoulders.
Are some seat belt types safer than others?
A five-point harness is safer than other seat belts but also restricts movement more. This type of seat belt is usually used in child safety seats or in cars used for competitive racing. Some vehicle owners also install five-point harness belts as an aftermarket modification.
What style of seat belt protects you best?
Shoulder belts are another kind of two-point belt, and they’re much rarer these days. You don’t see these anymore because they’ve been replaced by the three-point belt mentioned earlier, which is considered superior to most types. Shoulder belts are secured at the shoulder and the hip and restrain your upper body.
What is the difference between a 3 point harness and a 5-point harness?
The job of the 3 or 5 point harness is to hold the child in the seat. A 5 point harness has additional hip straps to help spread the force of a collision. This is very important when forward facing as the harness takes a lot of force which is then spread across the child’s torso.
What age do you stop using a 5-point harness?
Generally, kids are between the ages of 5-9 when they begin to outgrow the weight limitations of a 5-point harness car seat. Before you make the move to a belt-positioning booster seat, make sure your child meets these requirements: Generally, kids weighing over 65 pounds are ready to switch to a booster seat.
Should my 7 year old be in a 5-point harness?
The American Academy of Pediatrics recommends that kids use a car seat until they reach the maximum height or weight for that five-point harness. 2 This is usually not until at least age four, according to the National Highway Traffic Safety Administration (NHTSA).
Do seat belts really save lives?
People not wearing a seat belt are 30 times more likely to be ejected from a vehicle during a crash. More than 3 out of 4 people who are ejected during a fatal crash die from their injuries. Seat belts save thousands of lives each year, and increasing use would save thousands more.
Why did they stop making automatic seat belts?
After a short run in the production lines of many automakers, automatic seat belts were eventually phased out in favor of making airbags standard on all cars.
When did 3 point seat belts become standard?
1968 – Seat Belts Become Nationally Mandated
Although the three-point seat belt had been around for nearly a decade, the law did not specify the need for any particular design. As a result, many automakers installed separate lap and shoulder belts.